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Wireless WAN Driver not showing in device manager on Yoga 370 20JJ

2017-04-11, 6:38 AM
Hi. I've go issues with the Sierra EM7455 Wireless WAN Driver on Yoga 370 20JJ (Windows 10). Yesterday I installed the driver on the PC. It didn't show in Device Manager. It is not listed in the network and sharing center. My first thought was BIOS settings, but they are set correctly. The SIM card is 100 % working, but that isn't the issue either. I then tryed to install the latest BIOS driver for 370's and still no luck. I am kinda stuck now, and i'm dry of ideas. Any suggestions to solve this?
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02-22-2017

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Re: Wireless WAN Driver not showing in device manager on Yoga 370 20JJ

2017-04-11, 14:41 PM

Hello IT-Jogge,

Thanks for using the Lenovo forums.


Try to download the WiFi and Chipset drivers for the unit from the support page.

Make sure to reboot the unit after an update.

 

Hope this helps, let us know how you get on.


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Re: Wireless WAN Driver not showing in device manager on Yoga 370 20JJ

2017-04-11, 17:13 PM
IT-Jogge,

could you provide full MTM of your laptop (it begins with 80JJ)? If it's a CTO model, send me laptop's serial number via forum's private messages service.



x220 • Gobi 2000 3g | hdd, msata ssd, wwan, wifi, gps -- unique hand-made config
ThinkPad 25 Special Anniversary Edition. #Retro. Signed by D.Hill
T470p | X1 Carbon Gen3 | Miix 2 10" | Yoga Tablet 2-1050F (Android) + BT Keyboard
ThinkPad Stack • 2.4/5 Wireless Router, HDD 1 TB, BT Speaker, Power Bank, Mobile Projector

Do it well, worse becomes itself

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Re: Wireless WAN Driver not showing in device manager on Yoga 370 20JJ

2017-04-12, 6:47 AM
I've now installed both drivers for Chipset and WiFi drivers. But this didn't seem to help me any further. If you have other suggestions, let me know them. Thanks for your reply.
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Re: Wireless WAN Driver not showing in device manager on Yoga 370 20JJ

2017-04-12, 7:42 AM
Unfortunately, laptop with MTM 20JJ0025MD doesn't have a wwan card factory installed:
http://psref.lenovo.com/Detail/ThinkPad_Yoga_370?M=20JJ0025%2B%2B

I can't confirm clearly whether the laptop is "wwan upgradable", i.e.has wwan antennas set..



x220 • Gobi 2000 3g | hdd, msata ssd, wwan, wifi, gps -- unique hand-made config
ThinkPad 25 Special Anniversary Edition. #Retro. Signed by D.Hill
T470p | X1 Carbon Gen3 | Miix 2 10" | Yoga Tablet 2-1050F (Android) + BT Keyboard
ThinkPad Stack • 2.4/5 Wireless Router, HDD 1 TB, BT Speaker, Power Bank, Mobile Projector

Do it well, worse becomes itself

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5 Posts

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Re: Wireless WAN Driver not showing in device manager on Yoga 370 20JJ

2017-04-12, 8:59 AM
Well, that makes sense. I had my thoughts about that aswell. I opened the backcover, but wasn't able to confirm if the wwan card was installed or not. This reply helped me alot. Thank you, and happy easter.
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I want to buy lenovo think pad 370 modal 20JJS2QQ00 for sim and smart card

2017-09-25, 19:26 PM

The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc.


The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored - questions and answers belong in the forum so that others may contribute and benefit. ... GeezBlog

 

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